This episode of Food Safety Five discusses hoses as reservoirs for biofilms in food processing facilities, the presence of Listeria monocytogenes and Campylobacter on retail beef and chicken, a new Salmonella serovar database, and microplastics release from food contact materials.
A recent study sought to better understand the ability of Listeria monocytogenes biofilms on stainless steel surfaces to withstand common industry sanitizers, chlorine and PAA, using strains and temperature conditions relevant to the fresh leafy greens supply chain.
A recent study investigating biofilms in water hoses used in a meat processing facility revealed widespread microbial colonization, reaffirming concerns about hoses as reservoirs for pathogens, and underscoring the need for routine monitoring and maintenance of water delivery systems.
A recent study found that Listeria monocytogenes from multispecies biofilms exhibits higher growth in ready-to-eat (RTE) cold-smoked salmon than L. monocytogenes from single-species biofilms. Additionally, L. monocytogenes contamination from the multi-species biofilm surpassed EU regulatory limits after 15 days of storage.
Study’s results suggest that charged nanoplastics can influence the growth, viability, virulence, physiological stress response, and biofilm lifestyle of the pathogen Escherichia coli O157:H7.
A recent study of Pseudomonas spoilage microorganisms isolated from dairy products in Spain identified the presence of highly biofilm-forming, antimicrobial-resistant (AMR) strains, presenting challenges for dairy industry control strategies, and posing the risk of transfer of AMR genes to pathogenic foodborne bacteria.
This episode of Food Safety Five discusses two recent scientific studies that are advancing the food industry’s understanding of and ability to address Listeria monocytogenes, including new findings about the pathogen’s behavior in biofilms and a developing rapid detection method.
A Boston University study has shown that Escherichia coli exposed to microplastics form strong biofilms and develop increased levels of antimicrobial resistance (AMR) and multi-drug resistance.
A new study by USDA researchers has shown that long-read whole genome sequencing (WGS) could detect Salmonella attachment to food-contact surfaces earlier than traditional culture-based methods, allowing for sanitation interventions to be applied before the maturation of robust and difficult-to-remove biofilms.
A recent study demonstrated the ability of Listeria monocytogenes to colonize a preexisting multispecies biofilm within a matter of hours and survive within the biofilm over time, without significantly altering the community structure or the overall matrix composition.
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